COWAY FILTRATION: Hyper - Captive Air Filtration removes up to 99.999 percent of particles of pollutants, pollen and more, purifies spaces up to 176 m², excellent for spaces up to 70 m². DUAL SUCTION POWER: With a heavy CADR of 677 m³/h - The Airmega 400 sucks in polluted air from both sides and is able to quickly and efficiently clean an area of up to 176 m² Green - HEPA TECHNOLOGY: Mold and pollen removal rate heavily tested via external laboratories. Max2 Green FILTER: Activated Carbon and Green - HEPA Filter combined All-in-One filter for convenient filter change and maximum performance with Micro - Seal technology leaving no air leakage between filters COWAY: Specialists in air purification since 1994. With Coway's Max2 Green filter, it filters up to 99.999% of particles down to the size of 0.01 micrometre including pollutants, dust, germs, smell, smoke, pollen and VOCs. The advanced smart mode takes care of the entire auto air purification process by analyzing the air quality and changing the fan speed automatically. Through this process, energy consumption is optimized to save energy dramatically. The Airmega is ECARF certified for excellent allergy control and Quiet Mark certified for its low noise for everyday usage. Your proper clean air is 24/7 by your side with Airmega 400.